Question

java的file在new之后filePath仍然是null

File file1 = new File(job.txt)；后
filePath null
Path job.txt
prefixLength 0

status null
value
[0] j

[1] o
[2] b
[3] .
[4] t
[5] x
[6] t
[7]
[8]
……

Answer 1

您好，您 D盘 下建立个fileCheck文件夹，里面放些文件试试。
File f=new File("D:\\fileCheck");
File[] fs =f.listFiles();
for (File file : fs) {
System.out.println(file.getName());
}